Muhammad's Sunna is essential and equal to the Quran, as it completes the revelations given to him.

The Quran repeatedly emphasizes its own superiority and completeness as a source of divine guidance. Verses such as Surah 7:185 and Surah 45:6 question the validity of any hadith that is not aligned with God's revelations, suggesting that the Quran stands alone as the ultimate authority. Furthermore, the hadith literature itself acknowledges the Quran's preeminence, stating that the best speech is found within it. This creates a contradiction for those who elevate the Sunna to the same level as the Quran, as it undermines the Quran's claim to be the singular and complete word of God. Therefore, the assertion that Muhammad's Sunna is equal to the Quran fails to hold up against the Quran's own teachings, which declare it to be the best hadith and the ultimate source of guidance.